Connecting joint of prefabricated concrete sandwich thermal insulation wallboard
By setting up connection nodes at the bottom end of the precast concrete sandwich insulation wall panel, using steel pads and multiple casting technology, the problem of insulating connections cannot be anchored is solved, ensuring the safety and reliability of the connection.
Patent Information
- Application Number
- CN202421717982.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When the precast concrete sandwich insulation wall panel is turned upside down, the insulation connection cannot be combined with the inner leaf wall panel, affecting the connection safety.
The connecting node is set at the bottom end of the precast concrete sandwich insulation wall panel. The secondary casting area padded by the steel pads ensures effective anchoring between the connecting parts and the concrete beams, including the steel pad composed of the fillet welding connection of the channel steel and the steel plate. It is matched with thread blind holes and connectors to achieve multiple castings to ensure connection safety.
It solves the problem that the insulation connector cannot be anchored in the overturned area of the beam, and ensures the connection safety of the outer blade plate of the precast concrete sandwich insulation wall and the insulation layer.
Smart Images
Figure CN223189861U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of assembled building construction, in particular to a connection node of a prefabricated concrete sandwich insulation wall panel. Background Art
[0002] Precast concrete sandwich insulation wall panels are widely used in prefabricated buildings. They consist of outer leaf panels located on the outer surface of the building, an insulation layer in the middle, and inner leaf panels on the inner side. The inner and outer leaf panels are connected together by insulation connectors passing through the insulation layer. Therefore, the anchoring of the insulation connectors on the inner leaf panels plays a vital role in the connection security between the outer leaf panels and the insulation layer.
[0003] In the case of an upward flip of the structural concrete beam, the bottom elevation of the inner leaf wall panel will follow the upward shift of the top elevation of the structural beam, resulting in the outer leaf wall panel and the insulation layer forming a cantilevered section with a length approximately equal to the height of the beam flip. The insulation connectors in the cantilevered section cannot be combined with the inner leaf wall panel. In existing connection nodes, when the upward flipped portion of the structural beam is cast together with the floor slab concrete, a flap is formed after the concrete reaches the designed strength. The flap serves as the base for the upper precast concrete sandwich insulation wall panel for subsequent installation of the precast wall. In this case, the insulation connectors of the precast concrete sandwich insulation wall panel that is hoisted into place later cannot form a connection in the concrete flap that has already formed strength, thereby affecting the connection security of the outer leaf panel and the insulation layer of the precast concrete sandwich insulation wall. Therefore, a connection node for precast concrete sandwich insulation wall panels is proposed to solve the above problem. Utility Model Content
[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a connection node for a precast concrete sandwich insulation wall panel, which ensures the connection security between the outer blade of the precast concrete sandwich insulation wall and the insulation layer through the connection node.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] A connection node of a precast concrete sandwich insulation wall panel, comprising an outer blade, an insulation layer, an inner blade and a connector. The precast concrete sandwich insulation wall panel is connected to a concrete beam. A connection node for connecting to the concrete beam is further provided at the connector at the bottom end of the precast concrete sandwich insulation wall panel.
[0007] Furthermore, the connection node is a secondary casting area supported by steel pads.
[0008] Furthermore, the steel pad is composed of channel steel and steel plate connected by three-sided fillet welding.
[0009] Furthermore, a plurality of steel pads are provided per meter along the length direction of the wall.
[0010] Furthermore, two steel pads are provided per meter along the length direction of the wall.
[0011] Furthermore, the precast concrete sandwich insulation wall panel also includes threaded blind holes.
[0012] Furthermore, the threaded blind hole is arranged in the inner leaf plate of the precast concrete sandwich insulation wall panel.
[0013] Furthermore, the connecting piece passes through the thermal insulation layer to connect the outer blade and the inner blade together.
[0014] Furthermore, there are multiple connecting members.
[0015] Furthermore, the concrete beam includes longitudinal reinforcement, stirrups and positioning connecting steel bars.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] The precast concrete sandwich insulation wall panel provided by the utility model is provided with a connection node at the connection part position at its bottom end. When pouring concrete, the concrete beam is poured first with the floor elevation as the boundary, and then the precast concrete sandwich insulation wall panel provided by the utility model is hoisted above the poured concrete beam. Due to the setting of the connection node, there is a certain secondary pouring area between the precast concrete sandwich insulation wall panel and the concrete beam. Finally, the secondary pouring area is poured, which effectively solves the problem that the insulation connector of the precast concrete sandwich insulation wall panel cannot be anchored in the upper flip area of the beam, and ensures the connection security of the outer blade plate and the insulation layer of the precast concrete sandwich insulation wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a front view of the installation of a prefabricated concrete sandwich insulation wall panel and a concrete beam according to the present invention;
[0019] Figure 2 This is a right side view of the installation of a precast concrete sandwich insulation wall panel and a concrete beam according to the present invention;
[0020] Figure numerals: precast concrete sandwich insulation wall panel 1, outer blade 11, insulation layer 12, inner blade 13, connector 14, threaded blind hole 15, concrete beam 2, beam longitudinal reinforcement 21, beam stirrups 22, positioning connecting steel bars 23, first pouring area 24, connection node 25, steel pad 3, channel steel 31, steel plate 32, floor elevation A. DETAILED DESCRIPTION
[0021] The following is a detailed description of the present invention with reference to the accompanying drawings and specific embodiments. Any features such as component models, material names, connection structures, control methods, algorithms, etc. not explicitly described in this technical solution are considered to be common technical features disclosed in the prior art.
[0022] Example
[0023] This embodiment provides a precast concrete sandwich insulation wall panel, including an outer blade 11, an insulation layer 12, an inner blade 13 and a connector 14. The precast concrete sandwich insulation wall panel 1 also includes a threaded blind hole 15, which is arranged in the inner blade 13 of the precast concrete sandwich insulation wall panel 1. Multiple connectors 14 pass through the insulation layer 12 to connect the outer blade 11 and the inner blade 13 together.
[0024] In this embodiment, the connecting piece 14 at the bottom end of the precast concrete sandwich insulation wall panel 1 is also provided with a connection node 25 for connecting to the concrete beam 2. The connection node 25 is a secondary pouring area raised by a steel pad 3, and two steel pads 3 are arranged per meter along the length of the wall.
[0025] In this embodiment, the steel pad 3 is composed of a steel plate 32 and three edges of a steel limb of a channel steel 31 connected by lap fillet welding.
[0026] When the prefabricated concrete sandwich insulation wall panel 1 provided in this embodiment is used:
[0027] First, concrete is poured twice with the floor elevation A as the boundary. In the first pouring, the first pouring area 24 is poured with concrete to obtain a concrete beam 2. The concrete beam 2 also includes longitudinal reinforcement 21, stirrups 22, and positioning connecting reinforcement 23.
[0028] The precast concrete sandwich insulation wall panel 1 provided in this embodiment is then hoisted above the poured concrete beam 2. Due to the setting of the bottom steel pad 3, there is a certain secondary pouring area at the contact point between the two. At this time, the secondary pouring area is poured, which effectively solves the problem that the bottom insulation connector cannot be anchored in the upper flip area of the beam, thereby ensuring the connection security of the outer blade of the precast concrete sandwich insulation wall and the insulation layer.
[0029] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.
Claims
1. A connection node of a precast concrete sandwich insulation wall panel, wherein the precast concrete sandwich insulation wall panel (1) comprises an outer blade (11), an insulation layer (12), an inner blade (13) and a connector (14), and the precast concrete sandwich insulation wall panel (1) is connected to a concrete beam (2), characterized in that: A connection node (25) is also provided at the connection point between the bottommost connector (14) of the precast concrete sandwich insulation wallboard (1) and the concrete beam (2).
2. The connection node of the precast concrete sandwich insulation wall panel according to claim 1, characterized in that: The connection node (25) is a secondary casting area supported by a steel pad (3).
3. The connection node of the precast concrete sandwich insulation wall panel according to claim 2, characterized in that: The steel pad (3) is composed of a channel steel (31) and a steel plate (32) connected by fillet welding with three-sided welding.
4. The connection node of the precast concrete sandwich insulation wall panel according to claim 2, characterized in that: The steel pads (3) are arranged in plurality per meter along the length direction of the wall.
5. The connection node of the precast concrete sandwich insulation wall panel according to claim 4, characterized in that: The steel pads (3) are provided with two per meter along the length direction of the wall.
6. The connection node of the precast concrete sandwich insulation wall panel according to claim 1, characterized in that: The prefabricated concrete sandwich thermal insulation wall panel also includes a threaded blind hole (15).
7. The connection node of the precast concrete sandwich insulation wall panel according to claim 6, characterized in that: The threaded blind hole (15) is arranged in the inner leaf plate (13) of the precast concrete sandwich insulation wall panel.
8. The connection node of the precast concrete sandwich insulation wall panel according to claim 1, characterized in that: The connecting piece (14) passes through the heat-insulating layer (12) to connect the outer blade (11) and the inner blade (13) together.
9. The connection node of the precast concrete sandwich insulation wall panel according to claim 8, characterized in that: There are multiple connecting members (14).
10. The connection node of the precast concrete sandwich insulation wall panel according to claim 1, characterized in that: The concrete beam (2) comprises beam longitudinal reinforcement (21), beam stirrups (22) and positioning connection reinforcement (23).